Final answer:
Antihistamines are commonly used as the first line treatment for seasonal allergic rhinitis to alleviate symptoms. For more severe cases, additional medications or immunotherapy may be employed.
Step-by-step explanation:
The first line treatment for seasonal allergic rhinitis typically includes antihistamines. These medications help reduce or eliminate the effects of histamines, which cause symptoms like nasal congestion, sneezing, and hives. Patients may also benefit from using antileukotriene and ant prostaglandin drugs in combination with antihistamines for a more effective therapy regime.
However, for chronic allergy sufferers or those experiencing more severe reactions such as anaphylaxis, additional treatments like corticosteroids or emergency interventions like epinephrine injections may be necessary. Moreover, immunotherapy, or "allergy shots," can be an option for long-term relief, especially for allergens that are difficult or impossible to avoid.